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Clinical Problem Solving: Radiology
October 2006

Radiology Quiz Case 1: Diagnosis

Author Affiliations


Arch Otolaryngol Head Neck Surg. 2006;132(10):1154. doi:10.1001/archotol.132.10.1154

The finding of ectopic teeth is not a rare phenomenon, with an estimated incidence of approximately 0.1% to 1% in the general population.1 Ectopic teeth have been found in a variety of unusual locations, including the anterior mediastinum, retroperitoneal area, presacrum, coccygeal region, ovaries, and testes.2 More specifically, there are many reports of ectopic teeth located in and around the oral cavity and the maxillofacial skeleton. The teeth can be supernumerary or part of either the deciduous or the permanent dentition, involving such sites as the palate, maxillary sinuses, mandibular condyle, coronoid process, orbit, and nasal cavity, as well as eruption through the skin of the face.3 The original description of an intranasal tooth was published in 1897, and since then only a few cases have been reported.4